EP0646213B1 - Verfahren und vorrichtung zum verlegen von unterirdischen sammelleitungen für flüssigkeiten und gase - Google Patents
Verfahren und vorrichtung zum verlegen von unterirdischen sammelleitungen für flüssigkeiten und gase Download PDFInfo
- Publication number
- EP0646213B1 EP0646213B1 EP94915086A EP94915086A EP0646213B1 EP 0646213 B1 EP0646213 B1 EP 0646213B1 EP 94915086 A EP94915086 A EP 94915086A EP 94915086 A EP94915086 A EP 94915086A EP 0646213 B1 EP0646213 B1 EP 0646213B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- filter
- bore
- filter train
- cladding tube
- tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/02—Subsoil filtering
- E21B43/10—Setting of casings, screens, liners or the like in wells
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B3/00—Methods or installations for obtaining or collecting drinking water or tap water
- E03B3/06—Methods or installations for obtaining or collecting drinking water or tap water from underground
- E03B3/08—Obtaining and confining water by means of wells
- E03B3/14—Obtaining and confining water by means of wells by means of horizontal or oblique wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/02—Subsoil filtering
- E21B43/04—Gravelling of wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/02—Subsoil filtering
- E21B43/08—Screens or liners
- E21B43/082—Screens comprising porous materials, e.g. prepacked screens
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/20—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
Definitions
- the invention relates to a method for laying underground manifolds for liquids and gases, especially for the construction of horizontal filter wells and Drainage lines, as well as a working tool for implementation of the procedure.
- horizontal filter well construction The construction of horizontal, arched, sloping or winding wells and drainage pipes for both basic and backwater as well as soil air is summarized provided with the designation horizontal filter well construction.
- Conventional horizontal filter wells are used for extraction of groundwater through horizontally laid filter tubes is led into a vertical main shaft. From there the water is brought to the surface by means of pumps. Is also in areas of remediation and protection This type of well can be used to remove pollutants.
- Such horizontal filter wells have opposite Vertical wells procedural and under certain Requirements economic advantages.
- Another advantage is that the mechanical and pipe systems for Pump pressure lines, measuring devices and energy supplies with electrical switching and control devices far require less volume than vertical wells. As well is the monitoring and maintenance of a Horizontal filter well, measured on comparable Vertical fountain systems, not so expensive.
- Horizontal filter wells are next to water extraction principally used wherever relatively flat Water resources need to be remediated, or in strong layered floors where a certain layer is used Soil air remediation must be developed. Also in Areas with a development or where a not use the construction of vertical wells allows, or where there are hydraulic needs that suggest a horizontal filter well construction preferably used horizontal filter wells.
- the filter jacket can consist of filter gravel or filter sand.
- the horizontal holes in this method can only reach a limited length of up to about 60 m, and this only in straight route.
- the possible drill lengths will be determined by the soil properties.
- US 2,981,332 describes one vertically aligned Bore insertable filter element that has an outer cladding tube and includes an inner tube. Between the inner filter tube and the outer cladding tube is a filter layer consisting of Fiberglass arranged. After inserting the filter element in a vertical hole is pulled out the outer cladding tube, whereupon the fiberglass layer between the filter tube and outer cladding tube expands and close to the walls of the Drill hole. The filter element is due to the vertical Hole not drawn into it, but inserted into it or indented.
- the object of the present invention is a perfect to develop new process that is simple and quick installation of underground Horizontal filter wells and drainage lines, and a tool to carry out the process to provide.
- the invention is based on the idea that required horizontal drilling from the surface (e.g. shaftless on level terrain) and in these holes are already prefabricated Filter line construction with suitable filter tubes and a Filter gravel jacket, the so-called filter strand, from the Insert the surface into the holes. Doing so here one or more parts under a filter strand inner filter tube with surrounding one- or multi-part Gravel coat understood.
- the drill head is exited from the Exit opening of the bore through the expansion head replaced and this through the pilot hole or the micro-tunnel in hydraulic-mechanical mode of operation withdrawn.
- the filter train retraction unit to be coupled directly to the expansion head, whereby the filter strand pull-in unit during the expansion process is pulled into the widened bore.
- the diameter of the expanding head should be as possible at least the same size or larger than the diameter of the Filter strand retraction unit to be as small as possible Allow frictional forces when pulling into the hole.
- the Expanding head the filter train retraction unit in the wake of hydraulic-mechanical expanding head moved in.
- the filter strand can be in the inlet opening be fixed topically, and the protective tube of the The filter train pull-in unit can open to the other be pulled out. This creates between the filter strand and borehole wall an annulus caused by collapse is closed, which has beneficial effects on the Permeability of the well surroundings. For this reason it can be particularly advantageous to have one To choose expansion head diameter, which is considerably larger than that of the protective tube.
- the filter line structure can optimally match the hydrological conditions are adjusted. For one thing it is possible to fill between the filter tube and the drilling wall with differently coarse-grained filter materials on the other hand, this filling can be exactly in be constructed in a predetermined manner and can also be check the installation.
- filter line materials In the work equipment according to the invention, all are so far known filter line materials applicable. So can in addition to conventional and well-used in well construction Filter tubes of all types with fleeces, textiles and membranes an inner support tube in the filter line.
- the filter tube itself can be porous self-supporting Plastic filter tube, which is made of PE, PVDF, PTFE, PT, PU, PVC or the like.
- the structure of the individual filter strands can advantageously also to the geological-procedural requirements regarding be adapted to the geometry.
- the outer cladding tube is made of a smooth, stable plastic such as polyethylene or the like manufactured, thereby introducing the Filter strand pulling unit in the bore easier becomes.
- the working means according to the invention sensitive filter string before drilling fluid and Borschmand access protected and the outer cladding tube relieved the actual filter strand and keeps it clear of frictional forces.
- the inventive method can completely new areas open up because the individual filter strands in number, Diameters and lengths up to 500 m (with the corresponding Drilling technique can also be varied longer). As well are very small diameters of the individual filter lines possible that is not achieved with the known methods were.
- the respective section of the filter strand or Filter tube by retracting a camera while control the pulling process. Possibly occurring Damage to the filter train when pulling in is thus immediately detect and possibly eliminate.
- FIGS. 1 and 2 includes an after Process built according to the invention Horizontal filter wells one or more, light or strongly curved bores 1, which extend from a central Location from fan-shaped, in parallel or different in extend different or the same soil layers 2.
- Each individual bore 1 has an inlet opening 3 and one Exit opening 4 through which the Filter strand retraction unit 5 is retracted.
- 53 is below the level of groundwater in the unsaturated zone or in Backwater.
- the filter tube 53 is for this to the over and under the sections of the soil to be cultivated tightly closed and has only within the to farming soil layers of the bore Permeability through openings, slots, pores 54 or similar in the filter tube 53 through which the groundwater, Backwater or the ground air can flow in. They don't managed sections are, as is common in well construction, with full tubes instead of the filter strand 52, 53 removed.
- Fig. 3 it can be seen that the expansion head 10 on Drill pipe 11 is coupled. Behind the expanding head 10 is the filter train pull-in unit via a connection 12 5 connected to the expander head 10.
- the Filter strand retracting unit an outer cladding tube 51, one different granular filling 52 and a filter tube 53 includes.
- the actual filter string consists of the Gravel filter filling 52 and filter tube 53.
- a drilling device 13 is used a drill head 14 forming an inlet opening 3 in pushed the ground.
- the drill head 14 is located via a locating device and the Remote-controlled according to the respective requirements desired direction controlled.
- the hole is up to an outlet opening 4, on which the drill head 14th is replaced by an expansion head 10.
- On the on Drill pipe 11 attached expansion head 10 is a Connection 12 arranged on which the prefabricated Filter strand drawing unit 5 is coupled. Now it will Retracted drill pipe 11 towards inlet opening 3, the drill pipe 11 rotating with it Water pressure jets with the expansion head 10 through the Drill hole 1 moves, and thereby the hole 1 in her Diameter is increased by the expansion head 10.
- the Filter strand pull-in unit 5 up to the inlet opening 3 moved in.
- This drilling suspension reduces friction on the outer cladding tube 51 of the filter rod pull-in unit 5 as well as the necessary effort to withdraw the Drill pipe 11 and the filter string pull-in unit 5 reduced and additionally stabilized borehole 1.
- Filter filling 52 also certain plastic granules Grain size can be used. It is also possible from the Inlet opening 3 of water under pressure into the filter tube 53 initiate, which through the openings 54 in Filter tube 53 comes out underground again and additionally the friction between filter train 52, 53 and outer cladding tube 51 reduced.
- the filter strands drawn through holes 1 and therein 52, 53 formed horizontal filter wells can operated in different ways.
Description
- Fig. 1
- eine beispielhafte Unterfahrung,
- Fig. 1a
- eine schematische Darstellung des Vorantreibens einer Bohrung,
- Fig. 2
- eine Draufsicht mit beispielhaften Verlaufsformen der Brunnen und Drainagen,
- Fig. 3
- eine schematische Darstellung eines beispielhaften Aufweitvorgangs, und
- Fig. 4
- einen schematischen Schnitt senkrecht zum Filterstrang (Ausführungsbeispiel) mit noch ungezogenem Schutzrohr.
Claims (31)
- Verfahren zum Verlegen von unterirdischen Sammelleitungen für Flüssigkeiten und Gase, insbesondere zum Bau von Horizontalfilterbrunnen und Drainageleitungen, mit folgenden Verfahrensschritten:Einbringen mindestens einer Bohrung (1) in vorbestimmte Bodenschichten;Einziehen einer Filterstrang-Einzieheinheit (5), bestehend aus Filterstrang (52, 53) und äußerem Hüllrohr (51) in die jeweilige Bohrung (1); undEntfernen des äußeren Hüllrohres (51) der Filterstrang-Einzieheinheit (5);die Bohrung jeweils eine Eintrittsöffnung (3) und eine Austrittsöffnung (4) besitzt; unddie Filterstrang-Einzieheinheit (5) an einem Aufweitkopf (10) angekoppelt ist.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Bohrung (1) mittels eines verlaufgesteuerten Bohrungsverfahren vorangetrieben wird.
- Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß ein voll steuerbarer, fernlenkbarer Bohrkopf (14) zum Bohren verwendet wird.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß nach Einbringen der Bohrung (1) diese durch den Aufweitkopf (10) aufgeweitet wird.
- Verfahren nach Anspruch 4, dadurch gekennzeichnet, daß der Bohrkopf (14) nach Austritt aus der Austrittsöffnung (4) der Bohrung (1) entfernt und hierfür der Aufweitkopf (10) an das Bohrgestänge (11) angeschlossen wird.
- Verfahren nach Anspruch 4 oder 5, dadurch gekennzeichnet, daß beim Zurückziehen des Aufweitkopfes zur Eintrittsöffnung hin gleichzeitig die Filterstrang-Einzieheinheit in die Bohrung eingezogen wird.
- Verfahren nach Anspruch 6, dadurch gekennzeichnet, daß der Durchmesser des verwendeten Aufweitkopfes größer oder gleich dem Durchmesser der Filterstrang-Einzieheinheit ist.
- Verfahren nach Anspruch 4, dadurch gekennzeichnet, daß die Bohrung mehrmals mit verschieden großen Aufweitköpfen schrittweise weiter aufgeweitet wird, wobei mit dem letzten Aufweitschritt die Filterstrang-Einzieheinheit angeschlossen wird.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß der innere Filterstrang der Filterstrang-Einzieheinheit bei Zug des äußeren Hüllrohrs oberirdisch fixiert wird.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß nach Erstellen der Bohrung nur ein Hüllrohr eingezogen wird.
- Verfahren nach Anspruch 10, dadurch gekennzeichnet, daß der Filterstrang in das Hüllrohr eingeschoben wird.
- Verfahren nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die zum Bohren verwendete Bohrsuspension, die auch reines Wasser sein kann, gewässerneutral und biologisch abbaubar ist.
- Verfahren nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Bohrsuspension keine zusätzlichen Permeabilitätsverringerungen im Boden erzeugt.
- Verfahren nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Länge einer Bohrung (1) bis 500 m oder mehr beträgt.
- Verfahren nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß beim Ziehen des Hüllrohres (51) aus der Bohrung gleichzeitig Wasser durch den inneren Filterstrang (52, 53) unter Druck in die Bohrung (1) gepreßt wird.
- Verfahren nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Bohrung (1) eine beliebig gekrümmte Bahn beschreibt.
- Verfahren nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Bohrung (1) zu vorbestimmten Stellen vorangetrieben wird.
- Verfahren nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß in den inneren Filterstrang (53) zur Kontrolle des Einbauzustands eine Kamera eingefahren wird.
- Arbeitsmittel zur Durchführung des Verfahrens nach Anspruch 1, mit einer Filterstrang-Einzieheinheit (5) umfassendeinen inneren ein- oder mehrteiligen Filterstrang beziehungsweise Filterrohr (53); undein entfernbares äußeres Hüllrohr (51);der Zwischenraum zwischen innerem Filterrohr (53) und dem äußeren, entfernbaren Hüllrohr (51) leer ist oder den Zwischenraum eine Filtersand- und/oder Filterkiesfüllung füllt, und daßdie Filterstrang-Einzieheinheit (5) an einem Aufweitkopf (10) angekoppelt ist.
- Arbeitsmittel nach Anspruch 19, dadurch gekennzeichnet, daß das Filterrohr (53) ein inneres Stützrohr für Vliese, Textilien und Membranen umfaßt oder aus herkömmlichen Filterrohren besteht.
- Arbeitsmittel nach einem der Ansprüche 19 und 20, dadurch gekennzeichnet, daß das Filterrohr (53) aus einem porös selbsttragenden Kunststoff-Filterrohr, wie PE, PVDF, PTFE, PT, PU, PVC, und dergleichen, oder aus herkömmlichen Filterrohren besteht.
- Arbeitsmittel nach einem der Ansprüche 19 bis 21, dadurch gekennzeichnet, daß der Filterstrang (52, 53) Geotextilien und/oder Membranen mit Stützeinrichtung umfaßt.
- Arbeitsmittel nach einem der Ansprüche 19 bis 21, dadurch gekennzeichnet, daß der Filterstrang (52, 53) ein Filtervlies mit Stützeinrichtung umfaßt.
- Arbeitsmittel nach einem der Ansprüche 19 bis 21, dadurch gekennzeichnet, daß der Filterstrang (52, 53) aus porösem selbsttragenden Keramik- oder Sintermetallfilterrohren besteht.
- Arbeitsmittel nach Anspruch 19, dadurch gekennzeichnet, daß das äußere Hüllrohr (51) aus Polyethylen oder dergleichen besteht.
- Arbeitsmittel nach Anspruch 19, dadurch gekennzeichnet, daß die Füllung zwischen Filterstrang und äußerem Hüllrohr (51) aus Kunststoffgranulat besteht.
- Arbeitsmittel nach einem der Ansprüche 19 bis 26, dadurch gekennzeichnet, daß die Füllung zwischen Filterstrang und äußerem Hüllrohr nur in einem bestimmten Teilabschnitt vorhanden ist.
- Arbeitsmittel nach einem der Ansprüche 19 bis 27, dadurch gekennzeichnet, daß die Füllung (52) zwischen innerem Filterstrang (53) und äußerem Hüllrohr (51) nur an vorbestimmten Teilabschnitten der Fitlerstrang-Einzieheinheit vorhanden ist.
- Arbeitsmittel nach einem der Ansprüche 19 bis 28, dadurch gekennzeichnet, daß die Füllung zwischen innerem Filterstrang (53) und äußerem Hüllrohr (51) aus verschiedenen Schichten besteht.
- Arbeitsmittel nach Anspruch 29, dadurch gekennzeichnet, daß die verschiedenen Schichten aus unterschiedlich grobkörnigem Filtersand und/oder Filterkies bestehen.
- Arbeitsmittel nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der innere Aufbau der Filterstrang-Einzieheinheit (52, 53) nach den entsprechenden DIN-Normen aufgebaut ist.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4313221A DE4313221C2 (de) | 1993-04-22 | 1993-04-22 | Verfahren zum Verlegen von unterirdischen Sammelleitungen für Flüssigkeiten und Gase, insbesondere zum Bau von Horizontalfilterbrunnen und Drainageleitungen, und Arbeitsmittel zur Durchführung des Verfahrens |
DE4313221 | 1993-04-22 | ||
PCT/EP1994/001248 WO1994024414A1 (de) | 1993-04-22 | 1994-04-21 | Verfahren und vorrichtung zum verlegen von unterirdischen sammelleitungen für flüssigkeiten und gase |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0646213A1 EP0646213A1 (de) | 1995-04-05 |
EP0646213B1 true EP0646213B1 (de) | 1998-07-22 |
EP0646213B2 EP0646213B2 (de) | 2003-02-26 |
Family
ID=6486128
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94915086A Expired - Lifetime EP0646213B2 (de) | 1993-04-22 | 1994-04-21 | Verfahren und vorrichtung zum verlegen von unterirdischen sammelleitungen für flüssigkeiten und gase |
Country Status (12)
Country | Link |
---|---|
US (1) | US5597045A (de) |
EP (1) | EP0646213B2 (de) |
JP (1) | JP2771037B2 (de) |
CN (1) | CN1107643A (de) |
AT (1) | ATE168738T1 (de) |
CA (1) | CA2138401C (de) |
DE (2) | DE4313221C2 (de) |
DK (1) | DK0646213T4 (de) |
ES (1) | ES2120041T5 (de) |
LV (1) | LV11361B (de) |
RU (1) | RU2100531C1 (de) |
WO (1) | WO1994024414A1 (de) |
Cited By (2)
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DE10153061C2 (de) * | 2001-10-30 | 2003-11-20 | Tracto Technik | Filterstrang für unterirdische Sammelleitungen und Verfahren zum Einbringen des Filterstrangs in vorbestimmte Bodenschichten |
NL2003708C2 (nl) * | 2008-03-22 | 2010-06-02 | Visser & Smit Bv | Werkwijze voor het door middel van de hdd techniek vervaardigen van een ondergrondse put voor grondwateronttrekking of -berging of -infiltratie met toepassing van afpleistering en kunstmatige omstorting. |
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US6390192B2 (en) * | 1998-03-31 | 2002-05-21 | Well, Well, Well, Inc. | Integral well filter and screen and method for making and using same |
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EP4345245A1 (de) | 2022-09-27 | 2024-04-03 | Akademia Gorniczo-Hutnicza im. Stanislawa Staszica w Krakowie | Verfahren fur installieren eines modularen grundwasserfilters in ein bohrloch und ein grundwasserfiltermodul |
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US2335558A (en) * | 1940-08-30 | 1943-11-30 | Bruce B Young | Well screen |
US2827264A (en) * | 1954-08-04 | 1958-03-18 | Hugh W Sitton | Drilling tool |
US2950087A (en) * | 1955-10-24 | 1960-08-23 | James N Gregory | Combined rotary and percussion drilling |
US2981332A (en) * | 1957-02-01 | 1961-04-25 | Montgomery K Miller | Well screening method and device therefor |
US3357564A (en) * | 1964-09-22 | 1967-12-12 | Halliburton Co | Filtering apparatus and method of making it |
US3378076A (en) * | 1966-03-30 | 1968-04-16 | Mobil Oil Corp | Erosion protection in wells |
US3534816A (en) * | 1968-10-22 | 1970-10-20 | Union Oil Co | Method and apparatus for completing a well in vertically spaced porous strata |
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US4003440A (en) * | 1974-09-17 | 1977-01-18 | Tidril Corporation | Apparatus and process for drilling underground arcuate paths utilizing directional drill and following liner |
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SU1204702A1 (ru) * | 1984-03-11 | 1986-01-15 | Всесоюзный Научно-Исследовательский И Проектно-Конструкторский Институт По Осушению Месторождений Полезных Ископаемых,Специальным Горным Работам,Рудничной Геологии И Маркшейдерскому Делу | Скважинный фильтр |
US5040601A (en) * | 1990-06-21 | 1991-08-20 | Baker Hughes Incorporated | Horizontal well bore system |
CH683016A5 (de) * | 1990-12-24 | 1993-12-31 | Terra Ag Tiefbautechnik | Verfahren zum Aufweiten eines Bohrloches und Aufweitgerät. |
US5123492A (en) * | 1991-03-04 | 1992-06-23 | Lizanec Jr Theodore J | Method and apparatus for inspecting subsurface environments |
US5209605A (en) * | 1991-11-08 | 1993-05-11 | Evi Cherrington Enviromental, Inc. | Gravel-packed pipeline and method and apparatus for installation thereof |
-
1993
- 1993-04-22 DE DE4313221A patent/DE4313221C2/de not_active Expired - Fee Related
-
1994
- 1994-04-21 DE DE59406477T patent/DE59406477D1/de not_active Expired - Fee Related
- 1994-04-21 AT AT94915086T patent/ATE168738T1/de not_active IP Right Cessation
- 1994-04-21 EP EP94915086A patent/EP0646213B2/de not_active Expired - Lifetime
- 1994-04-21 DK DK94915086T patent/DK0646213T4/da active
- 1994-04-21 US US08/360,747 patent/US5597045A/en not_active Expired - Lifetime
- 1994-04-21 WO PCT/EP1994/001248 patent/WO1994024414A1/de active IP Right Grant
- 1994-04-21 JP JP6522786A patent/JP2771037B2/ja not_active Expired - Fee Related
- 1994-04-21 RU RU9494046359A patent/RU2100531C1/ru active
- 1994-04-21 ES ES94915086T patent/ES2120041T5/es not_active Expired - Lifetime
- 1994-04-21 CA CA002138401A patent/CA2138401C/en not_active Expired - Fee Related
- 1994-04-21 CN CN94190222A patent/CN1107643A/zh active Pending
- 1994-12-21 LV LVP-94-261A patent/LV11361B/en unknown
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10153061C2 (de) * | 2001-10-30 | 2003-11-20 | Tracto Technik | Filterstrang für unterirdische Sammelleitungen und Verfahren zum Einbringen des Filterstrangs in vorbestimmte Bodenschichten |
NL2003708C2 (nl) * | 2008-03-22 | 2010-06-02 | Visser & Smit Bv | Werkwijze voor het door middel van de hdd techniek vervaardigen van een ondergrondse put voor grondwateronttrekking of -berging of -infiltratie met toepassing van afpleistering en kunstmatige omstorting. |
Also Published As
Publication number | Publication date |
---|---|
JPH08501362A (ja) | 1996-02-13 |
JP2771037B2 (ja) | 1998-07-02 |
CA2138401A1 (en) | 1994-10-27 |
DK0646213T3 (da) | 1999-04-26 |
EP0646213B2 (de) | 2003-02-26 |
ES2120041T5 (es) | 2003-11-01 |
LV11361A (lv) | 1996-06-20 |
DE4313221A1 (de) | 1994-11-03 |
LV11361B (en) | 1996-10-20 |
CN1107643A (zh) | 1995-08-30 |
DK0646213T4 (da) | 2003-06-23 |
ES2120041T3 (es) | 1998-10-16 |
CA2138401C (en) | 2001-03-27 |
RU94046359A (ru) | 1996-10-10 |
ATE168738T1 (de) | 1998-08-15 |
DE4313221C2 (de) | 1995-08-17 |
EP0646213A1 (de) | 1995-04-05 |
WO1994024414A1 (de) | 1994-10-27 |
DE59406477D1 (de) | 1998-08-27 |
RU2100531C1 (ru) | 1997-12-27 |
US5597045A (en) | 1997-01-28 |
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